Fix bug for FrameCryptor and E2E test for E2EE. #1449

Job	Run time
Generating protobuf	16s
Make RTC sdist	13s
Build RTC wheels (aarch64)	1m 58s
Build RTC wheels (x86_64)	1m 1s
Build RTC wheels (x86_64 arm64)	1m 11s
Build RTC wheels (AMD64)	1m 18s
Test (ubuntu-latest, Python 3.10) / Test (ubuntu-latest, Python 3.10)	58s
Test (ubuntu-latest, Python 3.9) / Test (ubuntu-latest, Python 3.9)	1m 7s
Test (ubuntu-latest, Python 3.11) / Test (ubuntu-latest, Python 3.11)	1m 2s
Test (ubuntu-latest, Python 3.12) / Test (ubuntu-latest, Python 3.12)	1m 2s
Test (macos-latest, Python 3.12) / Test (macos-latest, Python 3.12)	1m 4s
Test (macos-latest, Python 3.14) / Test (macos-latest, Python 3.14)	1m 10s
Test (ubuntu-latest, Python 3.14) / Test (ubuntu-latest, Python 3.14)	48s
Test (ubuntu-latest, Python 3.13) / Test (ubuntu-latest, Python 3.13)	48s
Test (macos-latest, Python 3.9) / Test (macos-latest, Python 3.9)	1m 45s
Test (windows-latest, Python 3.12) / Test (windows-latest, Python 3.12)	1m 18s
Test (windows-latest, Python 3.9) / Test (windows-latest, Python 3.9)	1m 55s
Test (windows-latest, Python 3.14) / Test (windows-latest, Python 3.14)	1m 15s
docs	0s
Publish RTC release	0s
	20m 9s

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